Update shivammathur/setup-php digest to cb0fc74

Author: renovate[bot]

.github/workflows/azure-webapps-php.yml

@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@7c0b4c8c8ebed23eca9ec2802474895d105b11bc
+        uses: shivammathur/setup-php@cb0fc744e69822aaad298c9ad6e3df50e3537f64
         with:
           php-version: ${{ env.PHP_VERSION }}